Question [Q] Need help to find out ,whats wrong with my phone in Antutu benchmark.

Hi all ,
Recently i buy a Jiayu G4S (MT6592+2GB Ram) . i run Antutu benchmark (ver. 4.5.1 ) and i get a low score of 16xxx . I watch some videos that run Antutu benchmark in G4S and get result of 24xxx - 26xxx . i'll check the the system info. & the processor is MT6592 .

Why the benchmark result is different in same device?

Thank you.